阅读说明：本技术 一种羽毛蛋白复合材料的制备方法 (Preparation method of feather protein composite material ) 是由 郭清兵 尹国强 何明 于 2019-01-04 设计创作，主要内容包括：本发明涉及一种羽毛蛋白复合材料的制备方法。该复合材料包括羽毛蛋白(FK)5%~30%,热固性树脂80%~90%,固化剂10%-20%。首先利用化学法从废弃的动物羽毛中提取角蛋白,以角蛋白为原料,通过与热固性树脂复合,再加入适量固化剂,制备一种天然-合成高分子复合材料。这种复合材料通过角蛋白分子和高分子基体之间的化学反应建立界面之间,因而具有较强的相互作用力,能实现角蛋白分子和环氧分子之间分子水平的复合。通过构建角蛋白分子的网络结构和热固性树脂的网络结构,可以形成一种具有互穿互接网络的复合材料,充分实现界面增容。利用角蛋白的α螺旋结构弹性和β折叠结构的刚性,增韧和增强热固性树脂。本发明制备性能优良的天然—合成高分子复合材料,开发废弃羽毛高效再利用的途径。(The invention relates to a preparation method of a feather protein composite material, which comprises 5-30% of feather protein (FK), 80-90% of thermosetting resin and 10-20% of curing agent, wherein keratin is extracted from waste animal feathers by a chemical method, the keratin is used as a raw material and compounded with the thermosetting resin, and a proper amount of curing agent is added to prepare a natural-synthetic polymer composite material.)

1. The feather protein composite material is characterized by comprising the following components in percentage by weight: 10-30% of feather protein, 80-90% of thermosetting resin and 10-20% of curing agent, and the feather protein, the thermosetting resin and the curing agent are uniformly mixed and then cured and molded.

2. The feather protein composite of claim 1, wherein the feather protein is extracted from waste natural feathers, specifically comprising chicken feather, duck feather, goose feather and mixtures thereof.

3. The feather protein composite of claim 1 wherein the thermosetting resin used comprises epoxy resin, unsaturated polyester resin and the like.

4. The feather protein composite of claim 1 wherein the curing agents include amines, alcohols, carboxylic acids, anhydrides, styrene, etc.

5. The feather protein composite preparation process of claim 1, characterized by comprising the following steps:

(1) pretreatment of feather protein: washing commercially available feather with water, drying in a constant-temperature ventilation oven at 40 deg.C, pulverizing, boiling with petroleum ether for a certain time (boiling range of 45-50 deg.C) to remove oil and fat, and drying to obtain defatted feather;

(2) extracting feather protein: soaking a certain amount of degreased feathers in an aqueous solution containing urea, SDS, mercaptoethanol and tris (hydroxymethyl) aminomethane, and adjusting the pH value to 8-10 and 50-60^oC, heating and reacting for several hours, then diluting the solution, centrifuging the diluent, taking supernatant, adjusting the pH value to 3-5 by using hydrochloric acid, centrifuging again after the solution becomes turbid, collecting precipitate, and freeze-drying to obtain feather protein;

(3) preparing a composite material: taking a certain amount of feather protein and thermosetting resin, uniformly mixing under vacuum stirring, adding a curing agent, uniformly mixing, quickly transferring into a silica gel mold, and curing under certain conditions to obtain the feather protein composite material.

6. The feather protein composite of claim 5 wherein the feather protein is extracted by thiol reduction.

7. The feather protein composite of claim 5 wherein the ratio of feather protein/thermosetting resin is 10% to 30%.

Technical Field

The invention relates to a preparation method of a feather protein composite material.

Background

The feather is a precious resource and a serious pollution source, and if the feather enters the environment without proper treatment, environmental pollution and ecological deterioration are caused, at present, the condition of destroying and wasting part of resources is very serious, only a small part of the feather is effectively utilized, how to fully and effectively utilize the feather of the poultry, the feather has very important significance for reasonably utilizing agricultural production and living resources, reducing environmental pollution and improving rural ecological environment, and under the condition that world energy is increasingly exhausted, the feather of the poultry is taken as a resource, the comprehensive utilization and the research on the resource aspect of the feather also have great influence on the survival of human beings, therefore, the comprehensive recycling problem of the feather of the poultry becomes an important problem in the sustainable development of the current agriculture and the rural areas, the main component of the feather of the poultry is keratin, the content of which reaches more than 90 percent, the characteristics of strong toughness and light weight of the feather, the keratin is formed by copolymerizing 18 amino acids such as cysteine, proline, serine, threonine and the like at the primary structural level of the keratin has two structures of α helix and 4656, the high-tensile helix structure, the synthetic protein has good toughness of the high-toughness of the synthetic resin, the synthetic high-strength of the synthetic resin, the synthetic high-toughness of the synthetic resin, the synthetic keratin has the high-toughness of the high-strength of the synthetic resin, the synthetic resin of the synthetic resin with the synthetic high-strength of the synthetic resin, the high-toughness of the synthetic resin, the synthetic resin with the synthetic resin, the high-strength of the high-toughness of the synthetic resin, the synthetic.

Disclosure of Invention

The aim of the invention is to change the feather protein into valuable by utilizing the waste feather protein, and simultaneously utilize the α spiral structure elasticity of keratin and the rigidity of β folding structure to toughen and strengthen thermosetting resin to obtain a natural-synthetic polymer composite material with excellent performance, and the aim of the invention can be realized by the following measures:

1. the feather protein composite material is characterized by comprising the following components in percentage by weight: 10-30% of feather protein, 80-90% of thermosetting resin and 10-20% of curing agent;

2. the feather protein composite material of claim 1, wherein the feather protein is extracted from waste natural feathers, specifically comprising chicken feather, duck feather, goose feather and mixtures thereof;

3. the feather protein composite of claim 1, wherein the thermosetting resin used comprises epoxy resin, unsaturated polyester resin, etc.;

4. the feather protein composite of claim 1, characterized in that the curing agents used include amines, alcohols, carboxylic acids, anhydrides, styrene, etc.;

5. the preparation method of the feather protein composite material of claim 1, which is characterized by comprising the following steps:

(1) pretreatment of feather protein: washing feather bought from market with water, drying in a constant temperature ventilation oven at 40 deg.C, and pulverizing. Boiling with petroleum ether for a period of time (boiling range 45-50 deg.C) to remove oil and fat, and drying to obtain defatted feather;

(2) extracting feather protein: soaking a certain amount of degreased feathers in an aqueous solution containing urea, SDS, mercaptoethanol and tris (hydroxymethyl) aminomethane, and adjusting the pH value to 8-10 and 50-60^oC, heating for reaction for several hours, then diluting the solution, centrifuging the diluted solution, and taking the supernatant. Adjusting the pH value to 3-5 with hydrochloric acid, centrifuging again after the solution becomes turbid, collecting precipitates, and freeze-drying to obtain feather protein;

(3) preparing a composite material: taking a certain amount of feather protein and thermosetting resin, uniformly mixing under vacuum stirring, adding a curing agent, uniformly mixing, quickly transferring into a silica gel mold, and curing under a certain condition to obtain a feather protein composite material;

6. the feather protein composite of claim 5, wherein the feather protein is extracted by thiol reduction;

7. the feather protein composite of claim 5 wherein the ratio of feather protein/thermosetting resin is 10% to 30%.

Detailed Description

The technical solution of the present invention is further described below with reference to the following examples, but is not limited to these examples: